40881582 has 36 divisors (see below), whose sum is σ = 103040496. Its totient is φ = 11680200.

The previous prime is 40881571. The next prime is 40881601. The reversal of 40881582 is 28518804.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 22294 + ... + 24057.

It is an arithmetic number, because the mean of its divisors is an integer number (2862236).

Almost surely, 2^40881582 is an apocalyptic number.

40881582 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

40881582 is an abundant number, since it is smaller than the sum of its proper divisors (62158914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40881582 is a wasteful number, since it uses less digits than its factorization.

40881582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46373 (or 46363 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 36.

The square root of 40881582 is about 6393.8706586856. The cubic root of 40881582 is about 344.4894275009.

The spelling of 40881582 in words is "forty million, eight hundred eighty-one thousand, five hundred eighty-two".